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[2016-04-17 10:30:55 CEST] MrX funzt wieder. :-)
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[2016-04-17 19:57:26 CEST] * heinz joined
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[2016-04-17 20:01:07 CEST] hello heinz
[2016-04-17 20:01:14 CEST] hello rune
[2016-04-17 20:01:34 CEST] all perfect with the nu?
[2016-04-17 20:01:44 CEST] Hi, I have some questions on ZXNU and Assembler
[2016-04-17 20:01:53 CEST] yes
[2016-04-17 20:02:12 CEST] Almost with the NU. I put the PSU in the keyboard case and get the NMI? error 90% of the time
[2016-04-17 20:02:32 CEST] Its fine outside the case. So I think there must be some interference
[2016-04-17 20:02:56 CEST] Other than that the NU is brilliant
[2016-04-17 20:03:04 CEST] what kind of swit reg do you use?
[2016-04-17 20:03:38 CEST] Its like a Recon, but not that brand. I cant remember the make. It came from that german supplier
[2016-04-17 20:03:44 CEST] Ill try to look
[2016-04-17 20:03:59 CEST] not important.
[2016-04-17 20:04:17 CEST] OK, its 1A anyway
[2016-04-17 20:04:39 CEST] to avoid interfer try to add a cap.
[2016-04-17 20:04:57 CEST] Where?
[2016-04-17 20:05:10 CEST] let me have a look into the scheme.
[2016-04-17 20:05:21 CEST] Ok.
[2016-04-17 20:05:50 CEST] No rush as I only want PSU in the case to allow an ON/OFF switch
[2016-04-17 20:06:10 CEST] now i have the scheme.
[2016-04-17 20:06:22 CEST] do you have it too?
[2016-04-17 20:06:39 CEST] yes
[2016-04-17 20:06:45 CEST] ok.
[2016-04-17 20:07:05 CEST] look to the very bottom.
[2016-04-17 20:07:17 CEST] left hand +9v
[2016-04-17 20:07:22 CEST] ok
[2016-04-17 20:07:33 CEST] then 2 chokes.
[2016-04-17 20:07:43 CEST] ok
[2016-04-17 20:08:08 CEST] try shorten them. may be it helps.
[2016-04-17 20:08:40 CEST] Add a cap across their output or inputs
[2016-04-17 20:08:47 CEST] next: enlarge c4 to 100u{
[2016-04-17 20:09:16 CEST] OK
[2016-04-17 20:09:56 CEST] did you omit some caps c5...c13?
[2016-04-17 20:10:45 CEST] I will need to check. I ticked off the caps in the comp-onnent list and all were present, so I dont think anything was missed.
[2016-04-17 20:11:01 CEST] ok.
[2016-04-17 20:11:55 CEST] you told that the problem also appears with the reset button.
[2016-04-17 20:12:08 CEST] let us have a look to it.
[2016-04-17 20:12:38 CEST] where it is located in the scheme?
[2016-04-17 20:13:18 CEST] in the middle, left hand.
[2016-04-17 20:13:35 CEST] Yes, just found it.
[2016-04-17 20:13:45 CEST] r1 has 100k
[2016-04-17 20:14:03 CEST] try to shunt it with 10k
[2016-04-17 20:14:20 CEST] shunt = 10K in parallel?
[2016-04-17 20:14:25 CEST] yes.
[2016-04-17 20:14:42 CEST] this will reduce to about 9k.
[2016-04-17 20:15:22 CEST] Copied and noted
[2016-04-17 20:15:30 CEST] c7 is ok?
[2016-04-17 20:15:39 CEST] mechanically?
[2016-04-17 20:15:43 CEST] Yes
[2016-04-17 20:15:54 CEST] But I'll double check.
[2016-04-17 20:16:04 CEST] no more ideas at the moment.
[2016-04-17 20:16:29 CEST] Also its in the correct way. You have given me a lot to think about.
[2016-04-17 20:16:47 CEST] does the vdr works fine?
[2016-04-17 20:17:42 CEST] hello?
[2016-04-17 20:17:52 CEST] Yes, its fantastic. It did fail when I had 1000 programs in the root. So I have made Folders and plan to only have a total of 20 folders or programs in each folder
[2016-04-17 20:18:13 CEST] ok.
[2016-04-17 20:18:35 CEST] did you try the pgm 25th anniversary?
[2016-04-17 20:18:48 CEST] Do you know what or how to print a floating point number (5 byte mantissa/exponent) in assembler?
[2016-04-17 20:19:12 CEST] not now.
[2016-04-17 20:19:16 CEST] Yes, I loved the rotating ball and Z80 Inside bits the best. Not found the hidden screen yet
[2016-04-17 20:19:32 CEST] me too.
[2016-04-17 20:19:53 CEST] floating point numbers: what reason?
[2016-04-17 20:21:01 CEST] Im writing a tool to print out the variables and values at what ever point its called. I can get al lvariable types, but not print the values of the numeric ones
[2016-04-17 20:21:40 CEST] i know how to do it with the spectrum
[2016-04-17 20:21:45 CEST] I think I need to get the 5 bytes onto the calculator stack and then call the floating point print routine
[2016-04-17 20:22:00 CEST] but not for the zeddy.
[2016-04-17 20:22:19 CEST] Can you send me the calls for the Spectrum. I will try to match these up in the ZX 81 ROM
[2016-04-17 20:22:30 CEST] ask this question in the forum.
[2016-04-17 20:22:37 CEST] I have both ROM disassemblies
[2016-04-17 20:22:41 CEST] siggi will know it.
[2016-04-17 20:22:41 CEST] OK
[2016-04-17 20:23:18 CEST] did you try the mrx?
[2016-04-17 20:23:19 CEST] Hopefully I will have the MrX and Zeddynet working next week.
[2016-04-17 20:23:53 CEST] No, I need to work out the best way to connect the expansion board to the ZXNU
[2016-04-17 20:24:00 CEST] sometimes i have problems, if mrx and zeddynet is plugged.
[2016-04-17 20:24:15 CEST] Addresses clashing?
[2016-04-17 20:24:41 CEST] no, bit5 is totallly different.
[2016-04-17 20:24:59 CEST] which one does it affect?
[2016-04-17 20:25:06 CEST] i found one dry solder point
[2016-04-17 20:25:40 CEST] but there could be one more problem.
[2016-04-17 20:26:00 CEST] affect: zeddynet will not start.
[2016-04-17 20:26:28 CEST] Ah, can you disable the MrX when using the Zeddynet?
[2016-04-17 20:26:36 CEST] after giving password it goes back to basic.
[2016-04-17 20:26:48 CEST] sometimes.
[2016-04-17 20:27:09 CEST] at the moment both work very well togetjher.
[2016-04-17 20:27:20 CEST] every line a ping.
[2016-04-17 20:28:17 CEST] siggi had also a problem he wrote.
[2016-04-17 20:28:39 CEST] he is using some kind of bus expander.
[2016-04-17 20:29:01 CEST] he wroote that the clock signal was not good.
[2016-04-17 20:29:03 CEST] Could it be signal dropout?
[2016-04-17 20:29:36 CEST] i have checked clk wih the scope, it was perfect.
[2016-04-17 20:29:50 CEST] what about your scope?
[2016-04-17 20:30:40 CEST] My friend who was ordering it wasnt in at work on Friday. I was away until then. I'll chase him up on wednesday - 2 days holiday first.
[2016-04-17 20:30:47 CEST] On the MrX, what are the two sets of three holes. They look like mountings for the earphone or a PSU?
[2016-04-17 20:31:44 CEST] yes, i do not knowwhy there are such many holes.
[2016-04-17 20:32:03 CEST] might be for more earphones.
[2016-04-17 20:32:16 CEST] OK, I was looking at where I can fit it in my case and wondered.
[2016-04-17 20:33:00 CEST] Another questions.. what is best for desoldering Solder Sucker or braid?
[2016-04-17 20:33:02 CEST] dave, i think that is all for today.
[2016-04-17 20:33:18 CEST] no problems, I have a scotch shouting for me
[2016-04-17 20:33:28 CEST] desoldering is a problem.
[2016-04-17 20:33:32 CEST] Talk to you later
[2016-04-17 20:33:37 CEST] no.
[2016-04-17 20:33:50 CEST] let talk about desoldering.
[2016-04-17 20:33:58 CEST] now
[2016-04-17 20:34:05 CEST] No. I use the sucker, but wondered if braid was better overall or in some situations
[2016-04-17 20:34:30 CEST] what is braid?
[2016-04-17 20:34:59 CEST] ok.
[2016-04-17 20:35:14 CEST] i have ask my dictionary.
[2016-04-17 20:35:36 CEST] Im not sure. I think its either copper or steel, woven like an earth strap. You heat it on the solder you want to remove and it "sucks" the solder into itself
[2016-04-17 20:36:10 CEST] braid is perfect for big holes and one-sided boards.
[2016-04-17 20:36:33 CEST] usually i do the following.
[2016-04-17 20:37:41 CEST] either i cut the chips with a small mill
[2016-04-17 20:38:30 CEST] and remove the single pins seperatel}, finishhing wih sucker to get free holes.
[2016-04-17 20:39:31 CEST] or: ( take a fan with very hot air, whhich is used to remove paint from doors.
[2016-04-17 20:40:36 CEST] then i heat the board up from the solder side, strike itt on the table,
[2016-04-17 20:41:07 CEST] I tried the hot air way to reflow the chips on an exbox
[2016-04-17 20:41:30 CEST] Want to buy an expox DVD, hard drive, PSU. Motherboard went crispy
[2016-04-17 20:41:41 CEST] xBOX
[2016-04-17 20:42:35 CEST] Im going to put a 32K chip into my spare ZX81. I guess the 1/2K chips arent worth saving
[2016-04-17 20:42:47 CEST] But I dont want to keep you too long.
[2016-04-17 20:43:02 CEST] yes, just cut them.
[2016-04-17 20:43:22 CEST] alternately yyou could add a ram pack.
[2016-04-17 20:43:26 CEST] I will I probably wouldnt even need to desolder most of the legs
[2016-04-17 20:43:40 CEST] I have a ram pack, but its neice to have no wobble.
[2016-04-17 20:44:00 CEST] pokemon is developing a ram pack + usbb.
[2016-04-17 20:44:27 CEST] He is a very clever guy.
[2016-04-17 20:44:37 CEST] he wil sell it for 30 eur.
[2016-04-17 20:45:02 CEST] he called it zx-blast
[2016-04-17 20:45:10 CEST] Heh, I see the Retroleum guy has developed a plug in ULA for the Spectrum. Costs 15.99
[2016-04-17 20:45:36 CEST] that is really cheap
[2016-04-17 20:45:45 CEST] ok.
[2016-04-17 20:45:56 CEST] let us finish now.
[2016-04-17 20:46:01 CEST] Yep, he also does the diagnostics/.TAP.loader
[2016-04-17 20:46:04 CEST] try th 10k.
[2016-04-17 20:46:25 CEST] OK, talk layer, good night. I will try all suggestions
[2016-04-17 20:46:36 CEST] good night.
[2016-04-17 20:46:49 CEST] was nice to speak with you.
[2016-04-17 20:47:00 CEST] next sunday again?
[2016-04-17 20:47:05 CEST] and you. always a pleasure and informative
[2016-04-17 20:47:09 CEST] bye
[2016-04-17 20:47:12 CEST] bye
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[2016-04-17 20:47:31 CEST] * heinz quit (EOT)